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Amplifier voltage |
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Graham Slee
Admin Group Retired Joined: 11 Jan 2008 Location: South Yorkshire Status: Offline Points: 16298 |
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Posted: 17 Apr 2008 at 9:35pm |
Well...
Provided nothing went bang which it surely would, then Power = rms voltage squared over load impedance And therefore it would produce four times the power. However, four times the power is only 6dB(SPL) but you'd need 10dB(SPL) for it to sound twice as loud. 10dB(SPL) equates to 10 times the power which sounds twice as loud, 20dB(SPL) equates to 100 times the power which sounds twice as loud again, etc. Power to sound pressure level (SPL) = log10 to base ten of watts multiplied by 10, in dB SPL to power = antilog to base 10 (dB(SPL)/10), in watts Complicated isn't it, but the human/energy relationship is a logarithmic one. |
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That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
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Analog Kid
Senior Member Joined: 07 Mar 2008 Location: Germany Status: Offline Points: 209 |
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If I take a 120 volt amplifier from the U.S. and connect it to a 240 volt output in Australia, is it true it will be about twice as loud?
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